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co2 shotgun and question

Built a BB Machine Gun? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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Unread postAuthor: Heimo » Sun May 16, 2010 1:49 pm

superpenguin wrote:i was wondering about the possibilities of making a mold of this shot gun and melting abs and pouring it in the mold.

plastic (all kinds) do not get poured into molds, plastic is not fluid enough to be poured into molds. commercially plastic is injected into molds at enormous pressures

plastic parts are usually produced through the following procedures

blow molding
injection molding
vacuum forming
machining from solid chunks of stock
and I don't know how plastic pipes are made but I suspect it is through some type of extrusion process

the point I am trying to make is that you will be wasting your time trying to pour plastic into a mold, there are however polymer resins available that have been designed to be poured into a mold however these are expensive and the amount of equipment needed to use these successfully makes this less than ideal
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